Not such a horrible thing, there were a ton of cool Gamecube games but it doesn't endear them to third parties. Problems they made this gen:

- confusing mess of supported peripherals/games- Wii U name confuses people- Very little marketing in NA/EU- Underpowered hardware again, this is sort of Nintendos thing but they really pissed off third parties with that slow CPU and only 2GB of memory- Made Amazon and EA angry at the same time- eShop still sucks (seriously if I was a dev I would be pissed that they keep fucking this up)

Right now Ubisoft is one of the few companies really making an effort.

All of that said Nintendo is a weird company in that they can afford to go it alone, massive cash reserves and an amazing stable of highly desirable franchises.